Oil-burner.



C. Y. HOOP.

OIL BURNER. APPLICATION FILED NOV. 10, 1908. I 92 6, 1 37; Patented June 29, 1909.

llll CHRISTIAN Y. ROOF, OF KANSAS CITY, MISSOURI.

OIL-B URNE R.

Specification of Letters Patent.

Application filed November 10, 1908.

Patented June 29, 1909.

Serial No. 461,975.

To all whom it may concern:

Be it known that I, CHRISTIAN Y. Roor, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

This invention relates to oil burners and my object is to produce a burner with which crude oil or distillates may be employed as fuel.

A further object is to produce an oil burner embodying the desirable features of simplicity, strength, durability and cheapness of construction.

WVith these objects in View, the invention consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawing, in which;

Figure l, is a plan view of a burner embodying my invention, one half of the hood being omitted. Fig. 2, is a central vertical section of the burner. Fig. 3, is a plan view of the central portion of the lower part of the burner. Fig. et, is an inverted plan view of a part of the hood of the burner. Fig. 5, is a perspective View of the upper end of the oil-supply or feed pipe. In the said drawing where like reference characters identify corresponding parts, 1 indicates a pan preferably circular and of cast metal and provided with a plurality of air-inlet openings arranged in circular se ries and surrounded by the upwardly projeeting walls 3. A. circular wall 4; of less height than the walls 3, also projects upward from the bottom of the pan and is disposed within and concentrically of the circular series of walls 3, and rising from the bottom of the pan centrally of wall- 4. and to be a greater height than walls 3, is a hollow column 5 provided in its upper end or top with a. preferably threaded hole 6, and in the upper side of said top with preferably radial grooves or channels 7.

8 is an oil-supply or feed pipe extending up through the hollow column and of less diameter than the hollow of said column channel so as to provide an air space 9, which is open to the atmosphere at its lower end. The pipe 8 is externally threaded at its upper end by preference and engages the threaded hole 6 in the top of the column, 7

and preferably projects some distance above the latter with its pro ecting portion formed with openings which preferably are in the form of radial lrerfs 10.

The hood preferably consists of a plurality of radially-arranged downwardly-opening elbow portions 11 which externally embrace and rest upon the circular walls 3. The upper ends of the passages of said elbow portions communicate at their inner ends with a circular chamber 12 receiving the upper portion of the column and of a ma terially greater diameter than the latter, and said chamber 12 is extended upwardly by preference by the dome 13 of the hood. The chamber 12 is preferably deepened by the provision of a wall 1 1: depending at the inner ends of the passages of the elbow portions 11, it being noted in this connection that the lower edge of wall 14: terminates in a plane above the lower ends of the elbows, as shown clearly in Fig. 2, and that the lower ends of the elbows are spaced some distance above the bottom of the pan.

The construction as described is that which is preferred when crude oil is employed as a fuel. lVhen distill-ates are employed as a fuel the column is preferably surmounted by a cap consisting of a cylindrical portion 15 surrounding and spaced from the upper end of the column and a substantially truncated coneshaped upper portion 16. The lower portion of the conical portion rests upon the upper end of the column, and the upper end of the oil-supply or feed pipe engages the tapering portion near its upper end to aid in holding the cap centrally with respect to the column, it being further noted that the upper end of said pipe terminates short of the top of the cap so as to provide the intervening chamber wherein distillation of the more volatile oils may occur.

The hood is preferably provided with a perforated lug 18 for convenience in removing it from or placing it upon the burner while hot by means of a poker or similar device.

The pan is adapted to be titted in opening 19 of a plate 20, which plate forms the partition of a lire-box not. shown, so that the draft up through said box must pass up through the inlet openings 2, the elbow portions 11, chamber 12, and then downward and outward in order to escape from the pan.

The burner can be raised to vaporizing temperature in any suitable manner, for instance, by pouring a suitable quantity of kerosene into the pan and igniting it. After the burner has attained the desired temperature, the oil is permitted to flow up through pipe 8, such oil being a distillate by preference, if the burner is equipped with the cap described. In the passage 0 the oil up through pipe 8, it does not attain a volatilizing temperature until it reaches the upper end of the column, as the air space 9 of the column insulates the pipe below its point of physical contact with the column. As the oil thus reaches the top of the column and is vaporized it passes outward in all directions through the openings 10 except a small volume which fills chamber 17 of the cap and thus forms a reservoir which tends to insure an even and uninterrupted pressure of the vapor through the grooves 7 and down through the space between the upper end of the column and the lower portion 15 of the cap. As the vapor escapes from the lower'end of the cap it mixes with the air entering chamber 12 from the elbow portions so as to form a combustible compound or mixture; it being understood that when it mixes with the vapor it is at a high temperature because of its passage through the elbow portions which, when the burner is in operation, are highly heated. The mixture begins to burn immediately and the flame impinges on the bottom of the pan around the column and flares radially outward against and between the walls 3 and of course, the elbow-portion 11. If the supply of oil is sufficient the flame will completely envelop all of the burner except the bottom and outer surface of the pan, and may extend several feet upward. It may be turned sufficiently low to simply disclose a white flame between the radially-arranged elbows.

When it is desired to employ crude oil as fuel, the cap is omitted. In this case the crude oil, after it attains the top of the column, flows outwardly through the grooves 7 and then downward on the column, the lighter oils being vaporized at the top of the column and passing downward as vapor outward of the column, and the heavy oils flowing downward upon the latter, this vapor mixing with the hot air supplied by the elbows and filling the lower central portion of the burner with a flame which impinges on the heavy oils on the column and on the bottom of the pan within wall 42. This blast of flame upon such heavy oils in the bottom tends to coke such oils and then burns the coke and this action continues as long as the burner is in operation.

From the above description it will be apparent that I have produced a burner embodying the features of advantage enumerated as desirable and susceptible of modification as regards its form, proportion, construction and organization without departmg from the spirit and scope of the appended claims.

Having thus decribed the invention, what I claim as new and desire to secure by Letters Patent is:

1. in oil burner comprising a pan pro vided with an opening and with a hollow column communicating at its lower end with the atmosphere and provided with channels in its upper end extending to its outer margin, a hood over the column and depending to a plane betweenrthe upper and lower ends of the same and provided with a tubular elbow portion establishing communication between the interior of the hood and the said opening of the pan; a cap consisting of a lower portion surrounding and spaced from the upper part of the column and an upper portion tapering upwardly from the lower portion and overhanging and resting upon the column and bridging the channels thereof, and an oil-supply pipe extending up through the column and projecting above the same into the upper portion of the cap and, below the upper end of the column, of smaller diameter than the interior or hollow portion of the same.

2. An oil burner comprising a pan provided with a hollow column communlcating with the atmosphere at its lower end and provided also with an opening, and provided furthermore with a wall surrounding the column and projecting upward from the bottom of the pan, and a hood fitting over and surrounding the upper part of the column and provided with an elbow portion communicating at its lower end with the opening of the pan and at its upper end with the interior of the hood; said hood being provided inward of the lower end of the elbow with an annular wall terminating above the wall projecting upwardly from the bottom of the pan, and a cap within the hood surrounding the upper end of the column and spaced from the latter.

3. An oil burner, comprising a pan provided with openings arranged in circular series and with upwardly projecting walls surrounding such openings, and provided also with a centrally-arranged hollow column which communicates at its lower end with the atmosphere, and provided furthermore with an annular wall surrounding the column within the circle described by said openings and tern'iinating short of the upper ends of the walls of the latter; a hood fitting over the upper end of the column and provided with radially-arranged elbow portions fitting at their lower ends upon the walls of said openings and having pas- 1 sages communicating at their lower ends with said openings and at their upper ends with the interior of the hood, and provided below the inner ends of said elbow portions with a depending wall; and a cap within the hood comprising a lower portion surrounding and spaced from the upper portion of the column.

t. An oil burner comprising a pan pro vided With openings arranged in circular series and with upwardly-projecting walls surrounding such openings, and prox'ided also with a centrally-arranged hollow colunm which communicates at its lower end with the atmosphere, and is equipped with radial grooves in the upper side of its top; said pan being also provided with an annular wall projecting upward from the bottom around the column within the circular series of openings; a hood fitting over the column and provided with a series of radial tubular elbow portions resting at their lower ends upon the walls of said openings, and establishing communication between the said openings of the pan and the interior of the hood; an oil-supply pipe extending up through the hollow column and spaced from the inner side of the latter and secured to and projecting above the top of the column, and provided above the latter with openings; and a cap comprising an upwardly-projecting portion resting upon the top of the column and surrounding the upper end of the pipe, and a lower portion surrounding and spaced from the upper end of the column.

In testimony whereof I atlix my signature, in the presence of two witnesses.

G HRIST IAN Y. HOOP. 

